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Showing 1 to 12 of 30 entries
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Size and shape dependent few-cycle near-field dynamics of bowtie nanoantennas.

Optics express

Lorek E, Mårsell E, Losquin A, Miranda M, Harth A, Guo C, Svärd R, Arnold CL, L'Huiller A, Mikkelsen A, Mauritsson J.
PMID: 26698771
Opt Express. 2015 Nov 30;23(24):31460-71. doi: 10.1364/OE.23.031460.

Metal nanostructures can transfer electromagnetic energy from femtosecond laser pulses to the near-field down to spatial scales well below the optical diffraction limit. By combining few-femtosecond laser pulses with photoemission electron microscopy, we study the dynamics of the induced...

A comparison of untagged gamma-ray and tagged-neutron yields from .

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

Scherzinger J, Al Jebali R, Annand JRM, Fissum KG, Hall-Wilton R, Koufigar S, Mauritzson N, Messi F, Perrey H, Rofors E.
PMID: 28564615
Appl Radiat Isot. 2017 Sep;127:98-102. doi: 10.1016/j.apradiso.2017.05.014. Epub 2017 May 16.

Untagged gamma-ray and tagged-neutron yields from

Amplitude and phase control of attosecond light pulses.

Physical review letters

López-Martens R, Varjú K, Johnsson P, Mauritsson J, Mairesse Y, Salières P, Gaarde MB, Schafer KJ, Persson A, Svanberg S, Wahlström CG, L'huillier A.
PMID: 15698258
Phys Rev Lett. 2005 Jan 28;94(3):033001. doi: 10.1103/PhysRevLett.94.033001. Epub 2005 Jan 26.

We report the generation, compression, and delivery on target of ultrashort extreme-ultraviolet light pulses using external amplitude and phase control. Broadband harmonic radiation is first generated by focusing an infrared laser with a carefully chosen intensity into a gas...

Attosecond electron spectroscopy using a novel interferometric pump-probe technique.

Physical review letters

Mauritsson J, Remetter T, Swoboda M, Klünder K, L'Huillier A, Schafer KJ, Ghafur O, Kelkensberg F, Siu W, Johnsson P, Vrakking MJ, Znakovskaya I, Uphues T, Zherebtsov S, Kling MF, Lépine F, Benedetti E, Ferrari F, Sansone G, Nisoli M.
PMID: 20867908
Phys Rev Lett. 2010 Jul 30;105(5):053001. doi: 10.1103/PhysRevLett.105.053001. Epub 2010 Jul 27.

We present an interferometric pump-probe technique for the characterization of attosecond electron wave packets (WPs) that uses a free WP as a reference to measure a bound WP. We demonstrate our method by exciting helium atoms using an attosecond...

Probing single-photon ionization on the attosecond time scale.

Physical review letters

Klünder K, Dahlström JM, Gisselbrecht M, Fordell T, Swoboda M, Guénot D, Johnsson P, Caillat J, Mauritsson J, Maquet A, Taïeb R, L'Huillier A.
PMID: 21561188
Phys Rev Lett. 2011 Apr 08;106(14):143002. doi: 10.1103/PhysRevLett.106.143002. Epub 2011 Apr 05.

We study photoionization of argon atoms excited by attosecond pulses using an interferometric measurement technique. We measure the difference in time delays between electrons emitted from the 3s(2) and from the 3p(6) shell, at different excitation energies ranging from...

Spatial Control of Multiphoton Electron Excitations in InAs Nanowires by Varying Crystal Phase and Light Polarization.

Nano letters

Mårsell E, Boström E, Harth A, Losquin A, Guo C, Cheng YC, Lorek E, Lehmann S, Nylund G, Stankovski M, Arnold CL, Miranda M, Dick KA, Mauritsson J, Verdozzi C, L'Huillier A, Mikkelsen A.
PMID: 29257889
Nano Lett. 2018 Feb 14;18(2):907-915. doi: 10.1021/acs.nanolett.7b04267. Epub 2018 Jan 11.

We demonstrate the control of multiphoton electron excitations in InAs nanowires (NWs) by altering the crystal structure and the light polarization. Using few-cycle, near-infrared laser pulses from an optical parametric chirped-pulse amplification system, we induce multiphoton electron excitations in...

Tagging fast neutrons from a .

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

Scherzinger J, Al Jebali R, Annand JRM, Bala A, Fissum KG, Hall-Wilton R, Hamilton D, Mauritzson N, Messi F, Perrey H, Rofors E.
PMID: 28755547
Appl Radiat Isot. 2017 Oct;128:270-274. doi: 10.1016/j.apradiso.2017.05.022. Epub 2017 May 30.

Coincidence and time-of-flight measurement techniques are employed to tag fission neutrons emitted from a

Attosecond pulse shaping using a seeded free-electron laser.

Nature

Maroju PK, Grazioli C, Di Fraia M, Moioli M, Ertel D, Ahmadi H, Plekan O, Finetti P, Allaria E, Giannessi L, De Ninno G, Spezzani C, Penco G, Spampinati S, Demidovich A, Danailov MB, Borghes R, Kourousias G, Sanches Dos Reis CE, Billé F, Lutman AA, Squibb RJ, Feifel R, Carpeggiani P, Reduzzi M, Mazza T, Meyer M, Bengtsson S, Ibrakovic N, Simpson ER, Mauritsson J, Csizmadia T, Dumergue M, Kühn S, Nandiga Gopalakrishna H, You D, Ueda K, Labeye M, Bækhøj JE, Schafer KJ, Gryzlova EV, Grum-Grzhimailo AN, Prince KC, Callegari C, Sansone G.
PMID: 32042171
Nature. 2020 Feb;578(7795):386-391. doi: 10.1038/s41586-020-2005-6. Epub 2020 Feb 10.

Attosecond pulses are central to the investigation of valence- and core-electron dynamics on their natural timescales

Sub-cycle ionization dynamics revealed by trajectory resolved, elliptically-driven high-order harmonic generation.

Scientific reports

Larsen EW, Carlström S, Lorek E, Heyl CM, Paleček D, Schafer KJ, L'Huillier A, Zigmantas D, Mauritsson J.
PMID: 27991521
Sci Rep. 2016 Dec 19;6:39006. doi: 10.1038/srep39006.

The sub-cycle dynamics of electrons driven by strong laser fields is central to the emerging field of attosecond science. We demonstrate how the dynamics can be probed through high-order harmonic generation, where different trajectories leading to the same harmonic...

Efficient high-order harmonic generation boosted by below-threshold harmonics.

Scientific reports

Brizuela F, Heyl CM, Rudawski P, Kroon D, Rading L, Dahlström JM, Mauritsson J, Johnsson P, Arnold CL, L'Huillier A.
PMID: 23475106
Sci Rep. 2013;3:1410. doi: 10.1038/srep01410.

High-order harmonic generation (HHG) in gases has been established as an important technique for the generation of coherent extreme ultraviolet (XUV) pulses at ultrashort time scales. Its main drawback, however, is the low conversion efficiency, setting limits for many...

Photoemission electron microscopy using extreme ultraviolet attosecond pulse trains.

The Review of scientific instruments

Mikkelsen A, Schwenke J, Fordell T, Luo G, Klünder K, Hilner E, Anttu N, Zakharov AA, Lundgren E, Mauritsson J, Andersen JN, Xu HQ, L'Huillier A.
PMID: 20059146
Rev Sci Instrum. 2009 Dec;80(12):123703. doi: 10.1063/1.3263759.

We report the first experiments carried out on a new imaging setup, which combines the high spatial resolution of a photoemission electron microscope (PEEM) with the temporal resolution of extreme ultraviolet (XUV) attosecond pulse trains. The very short pulses...

Attosecond electron wave packet dynamics in strong laser fields.

Physical review letters

Johnsson P, López-Martens R, Kazamias S, Mauritsson J, Valentin C, Remetter T, Varjú K, Gaarde MB, Mairesse Y, Wabnitz H, Salières P, Balcou P, Schafer KJ, L'Huillier A.
PMID: 16090610
Phys Rev Lett. 2005 Jul 01;95(1):013001. doi: 10.1103/PhysRevLett.95.013001. Epub 2005 Jun 29.

We use a train of sub-200 attosecond extreme ultraviolet (XUV) pulses with energies just above the ionization threshold in argon to create a train of temporally localized electron wave packets. We study the energy transfer from a strong infrared...

Showing 1 to 12 of 30 entries